NEW DELHI: The Delhi Police Crime Branch on Saturday questioned the wife and family members of Rohit Shekhar into his unnatural death case. Crime Branch officials questioned Shekhar’s wife Apoorva for over eight hours, sources said.She was questioned about her entry in their Defence colony residence, her schedule –what she did during the day and why she did not find it odd when Shekhar was sleeping throughout the day, they said. Shekhar’s brother Siddharth and househelps –Martha and Golu –were also questioned since they, too, were present at his residence at the time of his death, the sources said. Also Read – After eight years, businessman arrested for kidnap & murderThe officials suspect that an insider was involved in the murder, they said. The Delhi Police had on Thursday registered a case of murder into the death of Shekhar, 40, hours after his autopsy report stated that he died of asphyxia due to strangulation. Shekhar, son of late Uttarakhand chief minister ND Tiwari, was brought to Max Hospital in south Delhi around 5 pm on Tuesday in an ambulance and doctors declared him dead. The case has been transferred to the crime branch for investigation. Shekhar’s cousin Rajeev and his wife Kumkum are also being questioned in connection with the case. Also Read – Two brothers held for snatchingsPolice sources said at least five-six calls were made from Rohit’s phone to Kumkum from 2 am to 4 am on the intervening night of Monday and Tuesday. They said police is trying to ascertain the reason why did Shekhar contact her at the odd hours. Neighbours claimed that the couple often had fights and just last month a PCR call was made by one of them. “They had a fight last month. A PCR call was also made in this regard. The local police had come to the residence of Shekhar. We could hear noises and we were out to check,” said a neighbour requesting anonymity.